A grocery store employee in Boca Raton was arrested Wednesday after she reacted to a performance review by allegedly threatening two supervisors with a large knife, according to an arrest report.

Elveta Joseph

Elveta Joseph is a facing a charge of aggravated assault and is being held in the Palm Beach County Jail in lieu of $10,000 bail.

Joseph, of Deerfield Beach, had been employed at Fresh Market at 100 W. Camino Real as a deli counter worker for nine years, the report said.

The store manager told police he and upper management met Monday with Joseph, 37, to discuss performance issues. The manager told police there had been two incidents in which Joseph had refused to comply with work assignments.

On Tuesday, the manager and co-manager of the store met with Joseph so that she could sign her written disciplinary action. As the manager presented the paperwork, Joseph allegedly pulled out a 8-to-10-inch serrated knife from behind her back and began swing it at the managers.

Joseph left the store in her car, the report said.

The report indicates that Joseph was arrested after she showed up to work Wednesday at 5 a.m.